Sealing-ring for containers



2L 119% J. M. HOTHERSALL SEALING RING FOR CONTAINERS 2 Sheets-Sheet Filed April 18, 1925 INVENTOR;

ATTORNEY J. M. HOTHIEQSALL fi wfifim SEALING RING FOR CONTAINERS Filed April 18, 1925 2 Sheets-Sheet 2 BY 1M6, 51' W ATTORNEY PatentedMay 21, 1929.

UNITED STATES PATENT OFFICE,

JOHN M. HOTHERSALL, OF BROOKLYN, NEW YORK, ASSIGNOR T AMERICAN" CAN COMPANY, 01? NEW YORK, N. Y., A CORPORAE ION OF NEW JERSEY.

SEALING-RING non commie Times.

Application filed April is, 1925. Serial no. 24,046;

My invention relates to containers and more particularly to means for closing the same, the type or container to which the invention is perhaps best adapted being that a in which a curled or falsewire edge is provided at thetop of the container body.

The principal object of the invention is to provide an improved closing member for attaching a loosely positioned cover to a can Elli body, which maybe applied by simple and inexpensive machinery and which, though providing a tight and effective seal, may be easily and conveniently removed by hand to open the container.

Another object of the invention is the provision of a can closing member which may be manufactured at low cost and by very eficient mechanical processes.

A further object is the provision oifan an article of this character. which may be applied to a completely formed can without bending or mutilating the can body.

lltli Still another object of the invention is the provision of a sealing or closing member which is separate from the can cover and is easily removable, the cover being replaceable as a temporary closure after the can has once been opened.

. The closing member of my invention is preferably in the form of a ring or inverted U shape with the edges thereot' curled and adapted to be partially unrolled in the attaching operation and an important feature of the construction is that the ring is split and the ends thereof slightly spaced apart, which serves the double purpose of facilitating removal and providing for endwise movement of the ring as the gripping edge thereof is contracted in the attaching operation, thereby increasing the tension of said edge and tightly clamping the cover to the can body.

Still another object of the invention is the provision of a sealing ring in which the raw edges are concealed so that the can may be handled and the ring may be grasped for removal without danger of cutting .the fin ers. l

ther objects and advantages of the in-- w vention will be apparent as it is better understood from the following description, which, taken in connection with the accompanying drawin s, discloses a preferred embodlment thereo Referring to the drawings,

nel opposite the outer curl on the sealing ring, which permits said ring tobe disposed entirely within the diameter of the body of i the can;

Fig. 5 illustratesthe application of my sealing ring to a necked-in paint pail or lead keg provided with a false wire top, the undei'1 side of which is disposed horizontally; an

Fig. 6 is a detailed sectional view illustrating a modified form of lead keg in which the false wire top is rolled-in the ordinary manner and extended outwardly from the vertical wall of the container.

On said drawings, illustrating the best manner in which l'have thus far contemplated applying the principles of m invention, the reference character 11 in icates a can body provided with a rolled edge, or false wire 12 at the top thereof, the can body being formed with the usual side seam 13 and having a bottom end 14 applied thereto. A cover 15, having a vertical wall portion 16 arrangeable within the body wall 11, is formed wlth a flange 17 adapted to rest upon the top of the ialse wire 12 and being returned upon itself, as indicated at 18, a gasket or any suitable sealing medium being provided at 20, if desired.

lln accordance with my invention, a sealing ring 19, of inverted U shape and pro vided with curled edges 21 and 22, is adapted. to be placed over the false wire 12 with the cover flan e 17 superimposed thereon, the inner curle edge 22 being disposed upon the depressed portion of the cover, as illustrated in Fig. 2. Pressure may then be exerted vertically upon the rolled edge 21 of said ring 19, partially unrolling the same and moving it downwardly to the osition shown in Fig. 3, in which it engages neath the false wire 12 and clamps saidcover-- flange 17 in place. It will be seen that the ring 19 is split, as indicated at 23, the ends being separated by a short distance, thus facilitating the positioning and removal of the ring. When it is desired to open the I container, one end may be lifted and the entire ring pulled oif, it being possible, under ordinary, conditions, to do this by hand and without the use of opening instruments .to provide a channel 25 opposite of any kind.

It will be evident that said sealing ring may be applied by a single stroke of a suitable die and inasmuch as it may be readily removed by hand, it is thoroughly efiicient and the operations involved are inexpensive; and easily performed.

Referring now necked-in, as shown at 28, and provided with.

a false wire edge 29,'which, in the resent instance, terminates in a horizontal ottoni portion 31. A gasket 32, of rubber or like material, is positioned on the top of the false wire 29 and provides'a seal when the ring 1s pressed down, as shown in the drawings.

Fig. 6 shows the sealing ring applied to a lead keg having a straight vertical wall 33 and an outwardly extended rolled edge, or false wire 34, very similar to the corresponding part in the ordinary can shown in Figs. 1 to 3 of the drawings.

, While I refer to the invention as being applied to a metal container with a rolled upper edge, it should be understood that the invention is equally well adapted to a vessel made of glass or similar materials having its upper edge formed into a projecting flange.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention, or sacrificing all of its material advantages, the form hereinbe-fore described being merely a preferred embodiment thereof.

I'claim: V

1. In combination, a container having a I retaining portion at the top thereof, a cover arrangeable upon said body and having a flange adapted to be secured thereto, and a separate ring of channel form arrangeable over said cover flange and retaining portion of the body and having a rolled edge adapted to be partially unrolled by pressure thereon to dispose the same in sealing engagement with said retaining portion of the body.

2. In combination, a container having a retaining ortion at the top thereof,-a cover arrangeab e upon said body and having a flange adapted to be secured thereto, a separate ring of channel form arrangeable over said cover flange and retaining portion of the body and having a rolled edge adapted to be partially unrolled by pressure thereon to dispose the same in sealing engagement with said retaining portion of the body, and sealing means between the cover and body.

3. In combination, a container having a retaining portion at the top thereof, a cover arrangeable upon said body and having a flange adapted to be secured thereto, anda split sealing ring of inverted U shape arrangeable over said cover, flange and retaining portion of the body and having rolled edges, one of which is adapted to be partially unrolled by downward pressure thereon to cause the .same to move inwardly beneath said retaining portion of the body to detachably hold the cover in place.

4. In combination, a container having a retaining-portion at the top thereof, a cover arrangeable upon said body and having a flange adapted to be secured thereto, and a separate split ring of channel form arrangeable over said cover flange and retaining portion of the body and having a rolled edge adapted to be partially unrolled by pressure thereon to dispose the same in sealing engagemen't with saidretaining portion of the ody.

JOHN M. HOT'HERSA'LL. 

